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TPS3702

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High-accuracy window voltage detector for overvoltage and undervoltage monitoring

Data sheet
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High-accuracy window voltage detector for overvoltage and undervoltage monitoring

TPS3702

ACTIVE
Data sheet Order now

Product details

Parameters

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 1, 1.2, 1.8, 3.3, 5 Features Undervoltage and overvoltage monitor, Wide input voltage Reset threshold accuracy (%) 0.9 Output driver type/reset output Active-low, Open-drain Time delay (ms) 0 Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 125 open-in-new Find other Supervisor & reset ICs

Package | Pins | Size

SOT-23-THN (DDC) 6 5 mm² 2.9 x 1.6 open-in-new Find other Supervisor & reset ICs

Features

  • Input Voltage Range: 2 V to 18 V
  • High Threshold Accuracy:
    • 0.25% (typ)
    • 0.9% (–40°C to 125°C)
  • Fixed Window Thresholds Optimized for Nominal Rails Between 1 V and 5 V
  • Open-Drain Outputs for Overvoltage and Undervoltage Indication
  • Internal Glitch Immunity
  • Threshold Adjust Using the SET Pin
  • Low Quiescent Current: 7 µA (typ)
  • Internal Threshold Hysteresis: 0.55%, 1.0%
  • SOT-6 Package
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Description

The TPS3702 is an integrated overvoltage and undervoltage window detector in a small SOT-6 package. This highly accuracy voltage monitor is ideal for systems that operate on low-voltage supply rails and have narrow margin supply tolerances. Low threshold hysteresis options of 0.55% and 1.0% prevent false reset signals when the monitored voltage supply is in its normal range of operation. Internal glitch immunity and noise filters further eliminate false resets resulting from erroneous signals.

The TPS3702 does not require any external resistors for setting overvoltage and undervoltage reset thresholds, which further increases overall accuracy and reduces solution size and cost. The SET pin is used to select between the two available threshold voltages designed into each device. A separate SENSE input pin and VDD pin allow for the redundancy sought by safety-critical and high-reliability systems. This device also features independent reset outputs for the OV and UV pins; as a result of the open-drain configuration, UV and OV can be tied together.

This device has a low typical quiescent current specification of 7 µA and is qualified for use over the industrial temperature range of –40°C to 125°C.

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NEW TPS3703 ACTIVE High-accuracy window supervisor with reset time delay Offers fixed threshold voltage options down to 0.5 V with programmable time delay.

Technical documentation

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Type Title Date
* Data sheet TPS3702 High-Accuracy, Overvoltage and Undervoltage Monitor datasheet Jan. 27, 2015
Technical article What’s not in the power MOSFET data sheet part 2: voltage-dependent leakage currents Jul. 23, 2021
Technical article Monitoring 12-V automotive battery systems: Load-dump, cold-crank and false-reset management Mar. 24, 2021
Functional safety information TPS3702 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA Mar. 03, 2021
Application note Voltage Supervisors (Reset ICs): Frequently Asked Questions (FAQs) (Rev. A) Mar. 17, 2020
Selection guide Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) Feb. 28, 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
User guide TPS3702CX33EVM-683 High accuracy window voltage detector EVM for OV/UV monitorin (Rev. A) Feb. 11, 2019
Technical article Tips and tricks for optimizing your voltage supervisor Mar. 07, 2017
Technical article Oh yes! My FPGA application is safe Oct. 26, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
30
Description
LAUNCHXL-F280049C is a low-cost development board for TI C2000™ Real-Time Controllers series of F28004x devices. Ideal for initial evaluation and prototyping, it provides a standardized and easy to use platform to develop your next application. This extended version LaunchPad offers extra pins (...)
Features

Hardware Features

  • TMS320F280049C: 100 MHz C28x CPU with FPU and TMU, 256 KB Flash, InstaSPIN-FOC enabled, 3x 12-bit ADC, CAN, encoder, FSI, UART, and more
  • On-board XDS110 debug probe for real-time debug and flash programming
  • 80 pin LaunchPad leveraging the BoosterPack ecosystem
  • Power domain isolation (...)
View details
EVALUATION BOARD Download
document-generic User guide
20
Description

The TPS3702CX33EVM-683 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS3702, which is a low power, high accuracy over-voltage and under-voltage detector that is available with fixed threshold options. The EVM circuit is configured to be a reference design for (...)

Features
  • 1% overall accuracy
  • Internal hysteresis options of 0.5% and 1%
  • Low supply current (8 uA typ)
  •  Open drain outputs
  •  SET pin to select ±5% and ±10% thresholds
View details
DAUGHTER CARD Download
document-generic User guide
Description

TMDSCNCD280049C is an HSEC180 controlCARD based evaluation and development tool for the C2000™ F28004x series of microcontroller products. controlCARDs are ideal to use for initial evaluation and system prototyping. controlCARDs are complete board-level modules that utilize one of two standard form (...)

Features

Hardware Features

  • Isolated on-board XDS100v2 USB-to-JTAG debug probe enables real-time in-system programming and debugging
  • Standard 180-pin controlCARD HSEC interface
  • Analog I/O, digital I/O and JTAG signals at card interface
  • Hardware Files are in C2000Ware at boards\controlCARDs\TMDSCNCD280049C

Software (...)

View details
DAUGHTER CARD Download
document-generic User guide
159
Description

TMDSCNCD28379D is an HSEC180 controlCARD based evaluation and development tool for the F2837xD,  F2837xS, and F2807x series in the TI MCU. controlCARDs are ideal to use for initial evaluation and system prototyping. controlCARDs are complete board-level modules that utilize one of two standard (...)

Features

Hardware Features

  • TMDSCNCD28379D: TMS320F28379D HSEC180 based controlCARD
    • Isolated XDS100v2 USB-to-JTAG Debug Probe enables real-time in-system programming and debugging
  • Standard 180-pin HSEC interface
  • Analog I/O, digital I/O and JTAG signals at card interface
  • USB Host connector
  • SDCard Slot
  • Hardware Files (...)
View details
DEVELOPMENT KIT Download
document-generic User guide
219
Description

TMDSDOCK28379D is a HSEC180 controlCARD based evaluation and development tool for the C2000™ Delfino™ F2837x and Piccolo F2807x series of microcontroller products. The Docking Station provides power to the controlCARD and has a bread-board area for prototyping. Access to the key device (...)

Features

Hardware Features

  • TMDSCNCD28379D: TMS320F28379D HSEC180 based controlCARD
    • Isolated XDS100v2 USB-to-JTAG Debug Probe enables real-time in-system programming and debugging
  • Bread-board like baseboard with HSEC180 controlCARD female connector
    • Header pin access to key MCU signals
    • Breadboard area for (...)
View details

Design tools & simulation

SIMULATION MODEL Download
SBVM438A.ZIP (91 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
View details
CALCULATION TOOL Download
SBVC045.ZIP (20 KB)

Reference designs

REFERENCE DESIGNS Download
4-kW interleaved CCM totem pole bridgeless PFC reference design using C2000™ MCU and GaN
PMP40690 — This reference design is a 4-kW interleaved CCM totem pole (TTPL) bridgeless PFC reference design using a 64-pin C2000™ microcontroller, LM3410 gallium nitride device and TMCS1100 hall sensor. It is based on TIDM-02008 bidirectional interleaved CCM TTPL bridgeless PFC reference (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Safety power supply for motor drives reference design
TIDA-010052 — This reference design implements a safe-power supply for powering up microcontrollers in an architecture featuring two MCUs. The design has several protection features including overvoltage protection and short circuit protection to prevent the MCUs from getting damaged. The DC/DCs, LMR36515 and (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Monitoring Voltage Rails on Delfino with TPS3702 Reference Design
TIDA-00392 — The C2000 Delfino microcontrollers' demand for a tight tolerance on both of its supply rails; this supervisory topology is designed to monitor the two voltage rails and assert a reset when either rail is not within its threshold. The two supervisors will monitor for both undervoltage and overvoltage (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOT-23-THIN (DDC) 6 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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